i can not understand the question. There seems to be missing info
Endothermic...a reaction that absorbs heat. That it is why it feels cold to the touch, it is absorbing heat away from the surface of your skin.
Jupiter or Mars I cant remember
You did not add the answers, but a non-living factor that could contribute could be temperature.
Answer:
PCl₃
Explanation:
To determine the empirical formula of a compound, we need to follow a series of steps.
Step 1: Divide each percent composition by the atomic mass of the element
P: 22.6/30.97 = 0.729
Cl: 77.4/35.45 = 2.18
Step 2: Divide all the numbers by the smallest one, i.e. 0.729
P: 0.729/0.729 = 1
Cl: 2.18/0.729 ≈ 3
The empirical formula of the compound is PCl₃.